my 96 has an inoperable Ac compressor. previous owner pulled the compressor and set it aside with the AC lines still hooked up, installed a bypass pulley so the truck would run. my question is, do i replace the entire AC compressor, theyre around $180 plus i have to pay to have the system emptied before i pull the hoses off. OR so i swap just the AC clutch? right now, as the compressor sits, the pulley does not move at all. is something jacked up internally or would a bad clutch cause this to happen? clutch is only $80.